I use net-mail/davmail as gateway to connect to an Exchange Server. Davmail
opens a new port localhost:1143, where I can connect with evolution. Additional
I configured a proxy to http://example.com:8080 with the Network Proxy
Preferences, except localhost and 127.0.0.0/8 . On startup evolutions tries to
connect to the proxy although the imap server is configured as localhost:1143 .

Reproducible: Always

Steps to Reproduce:
1. System -> Preferences -> Network Proxy
Manual proxy configuration
Use the same proxy for all protocols
HTTP proxy: http://example.com 8080
Ignored Hosts: localhost; 127.0.0.0/8

2. Applications -> Office -> DavMail Gateway
Configure Davmail IMAP to listen to port 1143

3. Applications -> Office -> Evolution Mail and Calendar
Create IMAP account with server localhost:1143

Actual Results:  
Evolution now tries to connect to the proxy example.com and fails to download
the mails because of connection timeout. Used proxy settings in evolution:
- Use system settings = connection to proxy
- Direct connect = connection to proxy
- Manual settings with all fields empty = connection to proxy

# netstat -p
Proto Recv-Q Send-Q Local Address           Foreign Address         State      
PID/Program name
tcp        0      0 woldtkevin.exampl:38086 example.com:8080        VERBUNDEN  
28825/evolution

Expected Results:  
I expect that evolution respects the ingnored hosts list or if it is configured
to connect directly to not connect to the proxy.

mail-client/thunderbird-bin-3.1.10 works correct with the proxy setting.

https://bugs.launchpad.net/ubuntu/+source/evolution/+bug/773908 describes the
same problem. Comment #9
(https://bugs.launchpad.net/ubuntu/+source/evolution/+bug/773908/comments/9)
lists a workaround which works for me:

1. set direct connection in gnome-network-properties
2. start evolution
3. reset proxy settings in gnome-network-properties